CN108572701B - Embedded industrial computer - Google Patents
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- CN108572701B CN108572701B CN201710132073.XA CN201710132073A CN108572701B CN 108572701 B CN108572701 B CN 108572701B CN 201710132073 A CN201710132073 A CN 201710132073A CN 108572701 B CN108572701 B CN 108572701B
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F1/16—Constructional details or arrangements
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- G06F1/183—Internal mounting support structures, e.g. for printed circuit boards, internal connecting means
- G06F1/187—Mounting of fixed and removable disk drives
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Abstract
本发明涉及嵌入式工业电脑，包括：一壳体(10)，其包括：一可拆卸安装板(12)，和一顶盖(115)，其与所述可拆卸安装板(12)平行；一硬盘(20)，其位于所述壳体(10)内并平行于所述可拆卸安装板(12)；一安装支架(30)，其通过复数个立柱(31)与所述顶盖(115)固定连接，所述安装支架(30)平行于所述顶盖(115)；和一减振机构(40)，其中，所述硬盘(20)通过所述减振机构(40)与所述安装支架(30)连接；其中，所述减振机构(40)通过柱形钢缆或长条形钢片实现全自由度的减振。
The invention relates to an embedded industrial computer, comprising: a casing (10), comprising: a detachable mounting plate (12), and a top cover (115), which is parallel to the detachable mounting plate (12); A hard disk (20), which is located in the casing (10) and parallel to the detachable mounting plate (12); a mounting bracket (30), which is connected to the top cover (30) through a plurality of uprights (31). 115) Fixed connection, the mounting bracket (30) is parallel to the top cover (115); and a vibration damping mechanism (40), wherein the hard disk (20) is connected to the The mounting bracket (30) is connected; wherein, the vibration damping mechanism (40) realizes vibration damping with full degrees of freedom through a cylindrical steel cable or an elongated steel sheet.
Description
Technical Field
The invention relates to the technical field of industrial computers, in particular to an embedded industrial computer.
Background
Industrial Personal Computer (IPC), or Industrial Computer, i.e. Industrial control Computer, is a general name for tools which use bus structure to detect and control production process, electromechanical equipment and process equipment. The industrial personal computer has important computer attributes and characteristics, such as a computer CPU, a hard disk, an internal memory, external equipment, an interface, an operating system, a control network, a protocol, computing power and a friendly human-computer interface.
An embedded industrial computer, or called a Box type industrial computer (Box PC), is a widely used industrial computer. Embedded industrial computers are typically mounted on a DIN rail or wall, the housing of the equipment, etc. When the embedded industrial computer is used, the embedded industrial computer is in a severe vibration environment, and a Hard Disk (Hard Drive Disk, abbreviated as HDD) in the embedded industrial computer is strongly vibrated. Shock resistance of hard disks is an important research topic. Chinese patent application documents CN 201489822U and CN 201285656Y disclose the shockproof technology of hard disk in the prior art.
Disclosure of Invention
One of the purposes of the invention is to provide an embedded industrial computer, and the hard disk of the embedded industrial computer has a simple shockproof structure, is convenient to install and has a good shockproof effect.
One aspect of the present invention provides an embedded industrial computer, comprising:
a housing, comprising:
a removable mounting plate, and
a top cover parallel to the removable mounting plate;
a hard disk, which is positioned in the shell and is parallel to the detachable mounting plate;
the mounting bracket is fixedly connected with the top cover through a plurality of upright posts and is parallel to the top cover; and
the hard disk is fixedly connected with the mounting bracket through the vibration reduction mechanism;
wherein, the damping mechanism realizes the damping of the full degree of freedom through the cylindrical steel cable or the strip steel sheet.
The embedded industrial computer realizes vibration reduction with full freedom degree through the cylindrical steel cable or the strip steel sheet, and has simple structure, convenient installation and good anti-seismic effect.
In an exemplary embodiment of the embedded industrial computer, the damping mechanism includes four damping units respectively fixed to four corners of the hard disk, each damping unit including:
the first connecting piece is fixedly connected with the hard disk and comprises a first through hole and a second through hole which are parallel to the hard disk;
the second connecting piece is fixedly connected with the mounting bracket and comprises a third through hole and a fourth through hole which are parallel to the mounting bracket, wherein the first through hole is vertical to the third through hole; and
and the cylindrical steel cable sequentially passes through the first through hole, the third through hole, the second through hole and the fourth through hole, wherein the cylindrical steel cable comprises four parts with the same length between the first connecting piece and the second connecting piece.
The installation between the cylindrical steel cable and the first connecting piece and the second connecting piece is simple. The single cylindrical steel cable is bent in the first direction, the second direction and the third direction, so that the all-round rigidity and damping are realized, the natural frequency of the hard disk is reduced, the vibration of the hard disk in a high frequency band is reduced, the structure is simple, the vibration reduction can be realized in the full degree of freedom, and the vibration reduction effect is good.
In another exemplary embodiment of the embedded industrial computer, the first through holes of two adjacent damping units are perpendicular to each other. The elasticity of the whole vibration damping mechanism in the second direction and the third direction is more uniform, and the difference of the vibration damping performance of the vibration damping mechanism in the second direction and the third direction is reduced.
In yet another illustrative embodiment of the embedded industrial computer, the diameter of the cylindrical steel cable is 0.8 mm to 1.6 mm, the length of the portion of the cylindrical steel cable between the first connector and the second connector is 30 mm to 40 mm, the distance between the first connector and the second connector is 18 mm to 25 mm, the distance between the first through hole and the second through hole is equal to the distance between the third through hole and the fourth through hole and is 6 mm to 10 mm, the lengths of the first through hole, the third through hole, the second through hole and the fourth through hole are all 10 mm to 15 mm, and the mass of the hard disk is 35 g to 500 g. When the parameters of the respective components of the vibration damping mechanism are within the above ranges, the vibration damping effect is very remarkable.
In another exemplary embodiment of the embedded industrial computer, the distance between adjacent damping units is 40 mm-80 mm, and the first connecting member and the second connecting member of each damping unit are made of aluminum. The distance between adjacent vibration reduction units is moderate, the installation is convenient, and the isotropy of the anti-seismic performance is improved. The aluminum connecting piece is light in weight, and the influence of the connecting piece on the anti-vibration performance is reduced.
In yet another exemplary embodiment of the embedded industrial computer, the vibration reduction mechanism comprises:
a hard disk mounting plate fixedly connected with the hard disk, wherein the hard disk is positioned between the hard disk mounting plate and the mounting bracket,
an annular elastic arm which comprises a long strip-shaped steel plate surrounding the side surface of the hard disk and is installed and connected with the hard disk installation plate,
the first arched elastic arm comprises a strip-shaped steel plate bending towards the annular elastic arm, two ends of the first arched elastic arm are fixedly connected with the mounting bracket, and the middle part of the first arched elastic arm is fixedly connected with the annular elastic arm; and
the second arched elastic arm comprises a strip-shaped steel plate bending towards the annular elastic arm, two ends of the second arched elastic arm are fixedly connected with the mounting bracket, and the middle part of the second arched elastic arm is fixedly connected with the annular elastic arm;
the first arched elastic arm and the second arched elastic arm are parallel and are respectively positioned on two opposite sides of the annular elastic arm.
The annular elastic arm, the first arched elastic arm and the second arched elastic arm are simply installed. Annular elastic arm, first bow-shaped elastic arm and second bow-shaped elastic arm are in first direction, and the homoenergetic is crooked in second direction and third direction, realize omnidirectional rigidity and damping promptly, have reduced the natural frequency of hard disk, have reduced the vibration of hard disk at the high-frequency channel, and its simple structure to can realize the damping at full degree of freedom, the damping is effectual.
In yet another illustrative embodiment of an embedded industrial computer, a hard disk mounting board comprises:
a mounting plate main body portion parallel to the hard disk,
a first extension portion vertically extending from the mounting plate main body portion to a side surface of the hard disk, an
The second extension part vertically extends from the mounting plate main body part to the side surface of the hard disk, and the first extension part and the second extension part are respectively positioned at two opposite sides of the hard disk;
the annular elastic arm includes:
a first resilient arm segment encircling from the first extension to the second extension, an
A second elastic arm section surrounding from the first extension to the second extension,
the first elastic arm section and the second elastic arm section are respectively located on two opposite sides of the hard disk, the first elastic arm section and the second elastic arm section are connected with the first extension portion in an installing mode, and the first elastic arm section and the second elastic arm section are connected with the second extension portion in an installing mode. The hard disk mounting plate and the annular elastic arm are simple in structure and convenient to mount.
In another exemplary embodiment of the embedded industrial computer, the embedded industrial computer further comprises:
two first fasteners, the first elastic arm section and the second elastic arm section are connected with the first extending part through the first fasteners, each first fastener comprises a first screw and a first rubber ring which are arranged at the inner side of the first screw, and
and each second fastener comprises a second screw and a second rubber ring which are arranged on the inner side of the second screw. The first rubber ring and the second rubber ring do not limit the rotational freedom degree of the hard disk, and can weaken the vibration response of three rotational freedom degrees.
In yet another exemplary embodiment of the embedded industrial computer, the vibration reduction mechanism comprises:
the third extending part extends from the middle part of the first arched elastic arm towards the first elastic arm section and is connected with the first elastic arm section in a mounting way;
and the fourth extension part extends from the middle part of the second arched elastic arm towards the second elastic arm section and is connected with the second elastic arm section in a mounting way. First bow-shaped elastic arm passes through third extension and first elastic arm section erection joint, and second bow-shaped elastic arm passes through fourth extension and second elastic arm section erection joint, and connection structure is simple, simple to operate.
In yet another exemplary embodiment of the embedded industrial computer, the annular spring arm, the first arcuate spring arm, the second arcuate spring arm, the third extension, and the fourth extension have a thickness of 0.2 mm to 0.6 mm. The long steel sheet with the thickness has good vibration damping performance.
Drawings
The above features, technical features, advantages and modes of realisation of the present invention will be further explained in a clear and understandable manner by describing preferred embodiments thereof in conjunction with the attached drawings, wherein:
FIG. 1 is a schematic perspective view of an embedded industrial computer according to an embodiment of the present invention;
FIG. 2 is a vibration response curve of an embedded industrial computer in a first direction according to one embodiment of the present invention;
FIG. 3 is a vibration response curve of an embedded industrial computer in a second direction according to one embodiment of the present invention;
FIG. 4 is a vibration response curve of an embedded industrial computer in a third direction according to one embodiment of the present invention;
fig. 5 is a schematic perspective view of an embedded industrial computer according to an embodiment of the present invention.
Description of reference numerals:
10 casing
11 housing body part
111 first side wall
112 second side wall
113 third side wall
114 fourth side wall
115 Top cover
12 Detachable mounting plate
20 hard disk
30 mounting bracket
31 column
40 damping mechanism
41 vibration damping unit
42 first connecting piece
421 first through hole
422 second through hole
43 second connecting piece
431 third through hole
432 fourth through hole
44 hard disk mounting plate
440 mounting plate main body part
441 first extension part
442 second extension part
45 annular elastic arm
451 first resilient arm segment
452 second resilient arm segment
46 first arcuate spring arm
461 third extending part
47 second arcuate spring arm
471 a fourth extension part
50 cylindrical steel cable
61 first fastener
611 first screw
612 first rubber ring
62 second fastener
D1 first direction
D2 second direction
Third direction D3
Excitation curves of environmental vibrations of L11, L21, L31, L41, L51, L61, L71, L81 and L91
L12, L22, L32, L42, L52, L62, L72, L82 and L92 vibration response curves
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings, in which like reference numerals refer to like parts throughout.
The figures discussed below, and the various embodiments used to describe the principles of the present disclosure in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the disclosure. Those skilled in the art will understand that the principles of the present disclosure may be implemented in any suitably arranged device. The various innovative teachings of the present application will be described with reference to exemplary non-limiting embodiments.
"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled.
In this document, "parallel" includes absolute parallel and substantially parallel within a tolerance; "vertical" includes absolute vertical and substantially vertical within error.
In this document, the shapes of the detachable mounting plate, the top cover, the hard disk, the mounting bracket, the strip-shaped steel plate, the mounting plate main body portion, the first extension portion, the second extension portion, the third extension portion, the fourth extension portion and the like are all that the length and the width are all greater than the thickness. The length and width make up a face that is larger than the other faces. In this document, the detachable mounting plate, the top cover, the hard disk, the mounting bracket, the elongated steel plate, the mounting plate main body portion, the first extension portion, the second extension portion, the third extension portion, the fourth extension portion, and the like are "parallel" or "perpendicular" to other components, and a plane formed by the length and the width of the detachable mounting plate is "parallel" or "perpendicular" to other components. The detachable mounting plate, the top cover, the hard disk, the mounting bracket, the elongated steel plate, the mounting plate main body, the first extension portion, the second extension portion, the third extension portion, the fourth extension portion, and the like are "parallel" or "perpendicular" to each other, which means that the surfaces formed by the lengths and widths of each other are "parallel" or "perpendicular".
The invention provides an embedded industrial computer, comprising:
a housing, comprising:
a removable mounting plate, and
a top cover parallel to the removable mounting plate;
a hard disk, which is positioned in the shell and is parallel to the detachable mounting plate;
the mounting bracket is fixedly connected with the top cover through a plurality of upright posts and is parallel to the top cover; and
the hard disk is connected with the mounting bracket through the vibration reduction mechanism;
wherein, the damping mechanism realizes the damping of the full degree of freedom through the cylindrical steel cable or the strip steel sheet.
Fig. 1 is a schematic perspective view of an embedded industrial computer according to an embodiment of the present invention. As can be seen from fig. 1, the embedded industrial computer includes: the hard disk drive comprises a shell 10, a hard disk 20, a mounting bracket 30 and a vibration damping mechanism 40.
The housing 10 includes a housing body portion 11 and a removable mounting plate 12. The housing body portion 11 has an opening (not identified) that mates with the removable mounting plate 12. The detachable attachment plate 12 is attached to the housing main body portion 11 from the opening. The housing main body portion 11 includes a first sidewall 111, a second sidewall 112, a third sidewall 113, and a fourth sidewall 114, and a top cover 115. The first side wall 111, the second side wall 112, the third side wall 113 and the fourth side wall 114 are connected end to end in sequence and form the opening. The top cover 115 is disposed adjacent to and opposite to the first, second, third, and fourth sidewalls 111, 112, 113, and 114. The top cover 115 is parallel to the removable mounting plate 12.
The hard disk 20 is located within the housing 10 parallel to the removable mounting plate 12. The hard disk 20 is shaped such that the top and bottom surfaces are much larger than the four side surfaces. In the present application, the term "parallel to or perpendicular to the hard disk" refers to the term "parallel to or perpendicular to the top or bottom surface of the hard disk" or "to the other components. The direction perpendicular to the hard disk 20 is a first direction D1, and the direction parallel to the hard disk 20 is a second direction D2 and a third direction D3. The second direction D2 is perpendicular to the third direction D3. In an exemplary embodiment, the first direction D1 is a thickness direction of the hard disk, the second direction D2 is a length direction of the hard disk, and the third direction D3 is a width direction of the hard disk.
The mounting bracket 30 is fixedly connected to the top cover 115 by a plurality of posts 31. The mounting bracket 30 is parallel to the top cover 115. In one exemplary embodiment, the mounting bracket 30 is a sheet metal member that is flat. The number of the pillars 31 is 4. One end of each upright 31 is fixed on the inner side wall of the top cover 115, and the other end is perpendicular to and fixedly connected with the mounting bracket 30.
The hard disk 20 is connected to the mounting bracket 30 by a vibration damping mechanism 40. In the embodiment shown in fig. 1, the damping mechanism 40 achieves damping in all degrees of freedom (including the first direction D1, the second direction D2, and the third direction D3) via a cylindrical wire cable. The mounting bracket 30, the vibration damping mechanism 40, and the hard disk 20 can be mounted into the housing 10 from the opening. The vibration damping mechanism realizes vibration damping of full freedom degree through the cylindrical steel cable, and has the advantages of simple structure, convenience in installation and good anti-seismic effect.
In an exemplary embodiment, the damping mechanism 40 includes four damping units 41 fixed to four corners of the hard disk 20, respectively. Each of the damping units 41 includes:
a first connecting member 42 fixedly connected to the hard disk 20, including a first through hole 421 and a second through hole 422 both parallel to the hard disk 20;
a second connecting member 43 fixedly connected to the mounting bracket 30, including a third through hole 431 and a fourth through hole 432 both parallel to the mounting bracket, wherein the first through hole 421 is perpendicular to the third through hole 431; and
and a cylindrical wire rope 50 sequentially passing through the first through hole 421, the third through hole 431, the second through hole 422 and the fourth through hole 432, wherein the cylindrical wire rope 50 includes four portions having the same length between the first connection member 42 and the second connection member 43.
The first through hole 421 and the second through hole 422 of the first connection member 42 are parallel to the top surface or the bottom surface of the hard disk 30. The third through hole 431 and the fourth through hole 432 of the second connecting member 43 are both parallel to the mounting bracket 30, and the planes of the first through hole 421 and the second through hole 422 are parallel to the planes of the third through hole 431 and the fourth through hole 432. The first through hole 421 is perpendicular to the third through hole 431 and the fourth through hole 432, and the second through hole 422 is perpendicular to the third through hole 431 and the fourth through hole 432. The single cylindrical wire rope 50 sequentially passes through the first through hole 421, the third through hole 431, the second through hole 422 and the fourth through hole 432. Cylindrical cable 50 includes four equal length sections between first link 42 and second link 43. That is, the length of the portion of the cylindrical wire rope 50 between the first through hole 421 and the third through hole 431, the portion of the cylindrical wire rope 50 between the third through hole 431 and the second through hole 422, the portion of the cylindrical wire rope 50 between the second through hole 422 and the fourth through hole 432, and the portion of the cylindrical wire rope 50 between the fourth through hole 432 and the first through hole 421 are the same. The installation between the cylindrical wire rope 50 and the first and second connectors 42, 43 is simple. Single cylindricality steel cable 50 all has the bending on first direction D1, second direction D2 and third direction D3, realizes omnidirectional rigidity and damping promptly, has reduced the natural frequency of hard disk, has reduced the vibration of hard disk at the high-frequency channel, its simple structure to can realize the damping at the full degree of freedom, the damping is effectual.
The first through holes 421 in different vibration damping units 41 may have the same orientation or different orientations. In an exemplary embodiment, the first through holes 421 in all the damping units 41 are parallel to each other. In another exemplary embodiment, the first through holes 421 in two adjacent damping units 41 are perpendicular to each other. In this way, among the four damper units 41, any two damper units 41 adjacent to each other have the same configuration as the other damper unit 41 rotated by 90 degrees in the first direction D1. The elasticity of the entire vibration damping mechanism 40 in the second direction D2 and the third direction D3 is more uniform, reducing the difference in the vibration damping performance of the vibration damping mechanism 40 in the second direction D2 and the third direction D3.
In an exemplary embodiment, the diameter of the cylindrical wire rope 50 is 0.8 mm to 1.6 mm, the length of the portion of the cylindrical wire rope 50 between the first connection member 42 and the second connection member 43 is 30 mm to 40 mm (the length of each of the four portions is the same), the distance between the first connection member 42 and the second connection member 43 is 18 mm to 25 mm, the distance between the first through hole 421 and the second through hole 422 is equal to the distance between the third through hole 431 and the fourth through hole 432 and is 6 mm to 10 mm, the length of each of the first through hole 421, the third through hole 431, the second through hole 422 and the fourth through hole 432 is 10 mm to 15 mm, and the mass of the hard disk is 35 g to 500 g. The material of the cylindrical wire rope 50 is stainless steel 301(SUS301) or X12CrNi 17. The damping effect of the damping mechanism 40 is greatly related to the specific parameters of its respective components. The inventors conducted a number of test trials on the embedded industrial computer shown in fig. 1. When the parameters of the respective components of the vibration damping mechanism 40 are within the above ranges, the vibration damping effect is very significant. Figures 2-4 are presented in this document to illustrate the damping effect. Fig. 2 is a vibration response curve of the embedded industrial computer in the first direction D1 according to one embodiment of the present invention. Fig. 3 is a vibration response curve of the embedded industrial computer in the second direction D2 according to an embodiment of the present invention. Fig. 4 is a vibration response curve of the embedded industrial computer in the third direction D3 according to one embodiment of the present invention. As can be seen in connection with fig. 1-4, the vibration response curve has an acceleration in g (acceleration due to gravity) on the ordinate a and a frequency in Hz (hertz) on the abscissa F. In fig. 2, a curve L11 is an ambient vibration excitation curve of 1g, a curve L21 is an ambient vibration excitation curve of 2g, and a curve L31 is an ambient vibration excitation curve of 4 g. Each environmental vibration excitation curve is divided into two parts, namely a first stage in which the frequency and vibration acceleration excitation gradually rises from 0 and a second stage in which the acceleration excitation keeps constant along with the rising of the frequency. In fig. 2, a curve L12 is a vibration response curve of 1g, a curve L22 is a vibration response curve of 2g, and a curve L32 is a vibration response curve of 4 g. Comparing the curves L11 and L12, it can be seen that under 1g of ambient vibration excitation, the peak of the vibration response is located near 40Hz, which is a 20Hz reduction from the conventional peak of the vibration response of 60Hz (which can typically be 60-100 Hz). Comparing the curves L21 and L22, it can be seen that under 2g of ambient vibration excitation, the peak of the vibration response is located near 30Hz, which is 30Hz less than the peak of the conventional vibration response of 60Hz (which can typically be 60-100 Hz). Comparing the curves L31 and L32, it can be seen that under 4g of ambient vibration excitation, the peak of the vibration response is located near 15Hz, which is 45Hz less than the peak of the conventional vibration response of 60Hz (which can typically be 60-100 Hz). Therefore, compared with the traditional structure, the embedded industrial computer provided by the invention reduces the frequency corresponding to the wave crest of the vibration response, namely reduces the natural frequency of the system. The greater the ambient vibration excitation, the greater the reduction in natural frequency. Thus, the vibration response of the embedded industrial computer in the high frequency stage (for example, 60-100Hz) is greatly reduced. The acceleration response in the first direction D1 may even be up to 25% of the excitation. At low frequencies, the amplitude of the peak of the vibrational response is also reduced. For example, the amplitude of the response peak corresponding to the vibration stimulus of 4g in fig. 2 is less than 3 g.
In fig. 3, a curve L41 is an ambient vibration excitation curve of 0.5g, a curve L51 is an ambient vibration excitation curve of 1g, and a curve L61 is an ambient vibration excitation curve of 2 g. In fig. 3, a curve L42 is a vibration response curve of 0.5g, a curve L52 is a vibration response curve of 1g, and a curve L62 is a vibration response curve of 2 g. Therefore, compared with the traditional structure, the embedded industrial computer provided by the invention reduces the frequency corresponding to the wave crest of the vibration response, namely reduces the natural frequency of the system. The greater the ambient vibration excitation, the greater the reduction in natural frequency. Thus, the vibration response of the embedded industrial computer in the high frequency stage (for example, 60-100Hz) is greatly reduced. The acceleration in response in the second direction D2 is even less than 10% of the excitation. At low frequencies, the amplitude of the peak of the vibrational response is also reduced. For example, the amplitude of the response peak corresponding to the vibration stimulus of 2g in fig. 3 does not exceed 0.5 g.
In fig. 4, a curve L71 is an ambient vibration excitation curve of 0.5g, a curve L81 is an ambient vibration excitation curve of 1g, and a curve L91 is an ambient vibration excitation curve of 2 g. In fig. 3, a curve L72 is a vibration response curve of 0.5g, a curve L82 is a vibration response curve of 1g, and a curve L92 is a vibration response curve of 2 g. Therefore, compared with the traditional structure, the embedded industrial computer provided by the invention reduces the frequency corresponding to the wave crest of the vibration response, namely reduces the natural frequency of the system. The greater the ambient vibration excitation, the greater the reduction in natural frequency. Thus, the vibration response of the embedded industrial computer in the high frequency stage (for example, 60-100Hz) is greatly reduced. The acceleration in response in the third direction D3 is even less than 10% of the stimulus. For example, the amplitude of the response peak corresponding to the vibration excitation of 2g in fig. 4 does not exceed 0.5 g.
Comparing fig. 3 and fig. 4, it can be seen that the vibration response curves of the embedded industrial computer provided by the present invention in the second direction D2 and the third direction D3 with the same frequency are almost the same. This also proves that the elasticity is uniform in the second direction D2 and the third direction D3 throughout the vibration damping mechanism 40, and the difference in the vibration damping performance of the vibration damping mechanism 40 in the second direction D2 and the third direction D3 is small.
The frequencies of the peaks of the vibration response curves shown in fig. 2-4 are shown in the following table:
in an exemplary embodiment, the distance between adjacent damping units 41 is 40 mm to 80 mm, and the first and second connecting members 42 and 43 of each damping unit are made of aluminum. The distance between adjacent vibration reduction units is moderate, the installation is convenient, and the isotropy of the anti-seismic performance is improved. The aluminum connecting piece is light in weight, and the influence of the connecting piece on the anti-vibration performance is reduced.
The parameters for the samples corresponding to fig. 2-4 are: the diameter of the cylindrical steel cable 50 is 1 mm, the length of the portion of the cylindrical steel cable 50 between the first connecting piece 42 and the second connecting piece 43 is 30 mm (the length of the four portions is the same), the distance between the first connecting piece 42 and the second connecting piece 43 is 18 mm, the distance between the first through hole 421 and the second through hole 422 is the same as the distance between the third through hole 431 and the fourth through hole 432 and is 7.8 mm, the length of the first through hole 421, the length of the third through hole 431, the length of the second through hole 422 and the length of the fourth through hole 432 are 10 mm, and the mass of the hard disk is 70 g. The material of the cylindrical wire rope 50 is stainless steel 301(SUS301) or X12CrNi 17. The distance between adjacent damping units 41 is 65 mm.
Fig. 5 is a schematic perspective view of an embedded industrial computer according to an embodiment of the present invention. The structure of the embedded industrial computer shown in fig. 5 is similar to that of the embedded industrial computer shown in fig. 1, except that the structure of the vibration reduction mechanism is different, and the rest is the same, as shown in fig. 1. In particular, the method of manufacturing a semiconductor device,
the embedded industrial computer comprises: the hard disk drive comprises a shell 10, a hard disk 20, a mounting bracket 30 and a vibration damping mechanism 40.
The housing 10 includes a housing body portion 11 and a removable mounting plate 12. The housing body portion 11 has an opening (not identified) that mates with the removable mounting plate 12. The detachable attachment plate 12 is attached to the housing main body portion 11 from the opening. The housing main body portion 11 includes a first sidewall 111, a second sidewall 112, a third sidewall 113, and a fourth sidewall 114, and a top cover 115. The first side wall 111, the second side wall 112, the third side wall 113 and the fourth side wall 114 are connected end to end in sequence and form the opening. The top cover 115 is disposed adjacent to and opposite to the first, second, third, and fourth sidewalls 111, 112, 113, and 114. The top cover 115 is parallel to the removable mounting plate 12.
The hard disk 20 is located within the housing 10 parallel to the removable mounting plate 12. The hard disk 20 is shaped such that the top and bottom surfaces are much larger than the four side surfaces. In the present application, the term "parallel to or perpendicular to the hard disk" refers to the term "parallel to or perpendicular to the top or bottom surface of the hard disk" or "to the other components. The direction perpendicular to the hard disk 20 is a first direction D1, and the direction parallel to the hard disk 20 is a second direction D2 and a third direction D3. The second direction D2 is perpendicular to the third direction D3. In an exemplary embodiment, the first direction D1 is a thickness direction of the hard disk, the second direction D2 is a length direction of the hard disk, and the third direction D3 is a width direction of the hard disk.
The mounting bracket 30 is fixedly connected to the top cover 115 by a plurality of posts 31. The mounting bracket 30 is parallel to the top cover 115. In one exemplary embodiment, the mounting bracket 30 is a sheet metal member that is flat. The number of the pillars 31 is 4. One end of each upright 31 is fixed on the inner side wall of the top cover 115, and the other end is perpendicular to and fixedly connected with the mounting bracket 30.
The hard disk 20 is connected to the mounting bracket 30 by a vibration damping mechanism 40. In the embodiment shown in fig. 5, the damping mechanism 40 realizes damping with a full degree of freedom (including the first direction D1, the second direction D2, and the third direction D3) by the elongated steel sheet. The mounting bracket 30, the vibration damping mechanism 40, and the hard disk 20 can be mounted into the housing 10 from the opening. The vibration reduction mechanism realizes vibration reduction of full freedom degree through the strip steel sheet, and has the advantages of simple structure, convenience in installation and good anti-seismic effect.
In an exemplary embodiment, the damping mechanism 40 includes:
a hard disk mounting plate 44 fixedly connected with the hard disk 20, wherein the hard disk 20 is positioned between the hard disk mounting plate 44 and the mounting bracket 30,
an annular elastic arm 45 which comprises an elongated steel plate surrounding the side surface of the hard disk 20 and is connected with the hard disk mounting plate 44,
a first bow-shaped elastic arm 46 which comprises an elongated steel plate bending towards the annular elastic arm 45, wherein two ends of the first bow-shaped elastic arm 46 are fixedly connected with the mounting bracket 30, and the middle part of the first bow-shaped elastic arm 46 is fixedly connected with the annular elastic arm 45; and
a second bow-shaped elastic arm 47, which comprises a long-strip-shaped steel plate bending towards the annular elastic arm 45, wherein two ends of the second bow-shaped elastic arm 47 are fixedly connected with the mounting bracket 30, and the middle part of the second bow-shaped elastic arm 47 is fixedly connected with the annular elastic arm 45;
wherein the first and second arcuate resilient arms 46, 47 are parallel and located on opposite sides of the annular resilient arm 45.
The strip-shaped steel plate is a steel plate with a thickness smaller than a width and a width smaller than a length. Which is straight or bent or curved in the length direction to form different shaped parts. The surface formed by the length and the width of the strip-shaped steel plate is larger than other surfaces of the strip-shaped steel plate. The long steel strip is parallel or perpendicular to other components in the application document, and the long steel strip is parallel or perpendicular to the other components in the aspect formed by the length and the width of the long steel strip.
The direction perpendicular to the hard disk 20 is a first direction D1. The directions parallel to the hard disk 20 are a second direction D2 and a third direction D3. The second direction D2 is perpendicular to the third direction D3. In an exemplary embodiment, the first direction D1 is a thickness direction of the hard disk, the second direction D2 is a length direction of the hard disk, and the third direction D3 is a width direction of the hard disk.
The annular spring arm 45 is formed by bending an elongated steel plate in the longitudinal direction, i.e., the plane formed by the length and width thereof is bent. The annular elastic arm 45 is rectangular when viewed from the first direction D1, and the hard disk mounting plate 44 and the hard disk 20 stacked together are located within a rectangular circle of the annular elastic arm 45. Annular resilient arms 45 surround the sides of the hard disk 20 and the hard disk mounting plate 44. The annular elastic arm 45 is mounted and connected with the hard disk mounting plate 44 from the side. The annular elastic arms 45 provide elastic deformation and vibration damping in the second direction D2 and the third direction D3.
The first and second arcuate spring arms 46 and 47 are each formed by bending an elongated steel plate in the longitudinal direction, i.e., the plane formed by the length and width of the two is curved. The bending direction thereof is towards the annular resilient arm 45, i.e. the bending is along the first direction D1. The first arcuate spring arm 46 has both ends fixedly connected to the mounting bracket 30 (e.g., with screws), and the middle portion of the first arcuate spring arm 46 is bent toward the annular spring arm 45 and fixedly connected to the annular spring arm 45. Similarly, the second arcuate spring arm 47 is fixedly connected (e.g., with screws) at both ends to the mounting bracket 30, and the middle portion of the second arcuate spring arm 47 is bent toward the annular spring arm 45 and fixedly connected to the annular spring arm 45. The first and second arcuate spring arms 46 and 47 are parallel and located on opposite sides of the annular spring arm 45, respectively, and both are capable of providing elastic deformation and vibration damping in the first direction D1, and are capable of uniformly assuming vibration damping in the first direction.
As can be seen from the above description, the damping mechanism 40 can achieve damping with a full degree of freedom by the annular elastic arm 45, the first arcuate elastic arm 46 and the second arcuate elastic arm 47 formed by the elongated steel sheets. The annular spring arm 45, the first arcuate spring arm 46 and the second arcuate spring arm 47 are simple to mount between each other. The annular elastic arm 45, the first arched elastic arm 46 and the second arched elastic arm 47 can bend in the first direction D1, the second direction D2 and the third direction D3, so that the all-dimensional rigidity and damping are realized, the natural frequency of the hard disk is reduced, the vibration of the hard disk in a high frequency band is reduced, the structure is simple, the vibration reduction can be realized in the full degree of freedom, and the vibration reduction effect is good.
In one exemplary embodiment, the hard disk mounting plate 44 includes:
a mounting plate body portion 440, which is parallel to the hard disk 20,
a first extension part 441 vertically extending from the mounting plate main body part 440 to a side surface of the hard disk 20, an
A second extension 442 vertically extending from the mounting plate main body 440 to a side surface of the hard disk 20, the first extension 441 and the second extension 442 being respectively located at two opposite sides of the hard disk 20;
the annular elastic arm 45 includes:
a first resilient arm segment 451 that extends from the first extension 441 to the second extension 442, and
a second resilient arm segment 452 that extends from the first extension 441 to the second extension 442,
the first elastic arm portion 451 and the second elastic arm portion 452 are respectively located on two opposite sides of the hard disk 20, the first elastic arm portion 451 and the second elastic arm portion 452 are mounted and connected to the first extending portion 441, and the first elastic arm portion 451 and the second elastic arm portion 452 are mounted and connected to the second extending portion 442.
As can be seen from fig. 5, in this embodiment, the mounting plate main body 440 is parallel to and fixedly connected to the hard disk 20, that is, the surface formed by the length and the width of the mounting plate main body 440 is parallel to the surface formed by the length and the width of the hard disk 20. The mounting plate main body 440 has two extending portions extending from two opposite sides of the mounting plate main body 440 along the first direction D1, and located on two opposite sides of the hard disk 20. The first extension 441 and the second extension 442 are each used for a fixed connection with the annular elastic arm 45. The first extension 441 and the second extension 442 are perpendicular to the mounting plate main body portion 440 and the hard disk 20, and parallel to the annular elastic arm 45.
The annular elastic arm 45 is formed by combining two half-frame steel plates, one of which is a first elastic arm section 451, and the other of which is a second elastic arm section 452. Both are formed by bending a strip steel sheet. One end of the first elastic arm segment 451 overlaps one end of the second elastic arm segment 452 and is mounted and connected with the first extension portion 441. The other end of the first elastic arm segment 451 overlaps the other end of the second elastic arm segment 452 and is connected to the second extension 442. The first elastic arm portion 451 extends along the left half side of the hard disk 20, and the second elastic arm portion 452 extends along the right half side of the hard disk 20, which are respectively located at two opposite sides of the hard disk 20. The hard disk mounting plate and the annular elastic arm are simple in structure and convenient to mount.
In one exemplary embodiment, the embedded industrial computer further comprises:
two first fastening members 61, a first elastic arm portion 451 and a second elastic arm portion 452 are mounted and connected to the first extending portion 441 through the first fastening members 61, each of the first fastening members 61 includes a first screw 611 and a first rubber ring 612 disposed inside the first screw 611, and
two second fastening members 62, a first elastic arm portion 451 and a second elastic arm portion 452 are connected to the second extending portion 442 via the second fastening members 62, and each of the second fastening members 62 includes a second screw (not shown) and a second rubber ring (not shown) disposed inside the second screw. It should be noted that, due to the angle shown in fig. 5, the second fastening member 62, and the structure of the second screw and the second rubber ring therein cannot be shown. The second fastening member 62 and the second screw and the second rubber ring therein have the same structure as the first fastening member 61 and the first screw 611 and the first rubber ring 612 therein.
Specifically, as can be seen in connection with fig. 5, one end of the first resilient arm segment 451 overlaps one end of the second resilient arm segment 452. One end of the first resilient arm section 451 has two first apertures (not shown) at the overlap. The second resilient arm segment 452 also has two second apertures (not shown) at one end of the second resilient arm segment at the overlap. The first extension portion 441 has two third holes (not shown) penetrating the first extension portion 441 in a thickness direction. The first holes, the second holes and the third holes correspond to one another. A first screw 611 passes through the first, second and third holes to mount and connect the first and second elastic arm sections 451, 452 to the first extension 441. The first rubber ring 612 is sleeved on the inner side of the first screw 611 and separates the head of the first screw 611 from the first elastic arm section 451 and the second elastic arm section 452. The first rubber ring 612 does not limit the rotational degrees of freedom of the hard disk 20, and its main function is to attenuate the vibrational response of the three rotational degrees of freedom. Likewise, the other end of the first resilient arm segment 451 overlaps the other end of the second resilient arm segment 452. The other end of the first resilient arm section 451 has two fourth holes (not shown) at the overlap. The other end of the second resilient arm segment 452 also has two fifth holes (not shown) at the overlap. The second extending portion 442 has two sixth holes (not shown) penetrating the second extending portion 442 in the thickness direction. The fourth hole, the fifth hole and the sixth hole are in one-to-one correspondence. A second screw passes through the fourth, fifth and sixth holes to connect the first and second elastic arm sections 451, 452 to the second extension 442. The second rubber ring is sleeved on the inner side of the second screw to separate the head of the second screw from the first elastic arm section 451 and the second elastic arm section 452. The second rubber ring does not limit the rotational degrees of freedom of the hard disk 20, and its main function is to attenuate the vibrational response of the three rotational degrees of freedom.
In an exemplary embodiment, the damping mechanism 40 includes:
a third extending portion 461 extending from the middle of the first bow-shaped elastic arm 46 toward the first elastic arm segment 451 and connected to the first elastic arm segment 451;
a fourth extension 471, which extends from the middle of the second arched elastic arm 47 toward the second elastic arm segment 452, and is connected to the second elastic arm segment 452.
As shown in fig. 5, the third extending portion 461 is a long strip steel piece perpendicular to the first bow-shaped spring arm 46 and extending along the first direction. The third extension 461 extends from the middle of the first arcuate spring arm 46 and is integral with the first arcuate spring arm 46. The third extension 461 is fixedly connected to the first elastic arm segment 451 by a screw (not shown). Similarly, the fourth extension 471 is formed as an elongated steel piece perpendicular to the second arcuate resilient arm 47 and extending along the first direction. The fourth extension 471 extends from the middle of the second arcuate resilient arm 47 and is integral with the second arcuate resilient arm 47. The fourth extension 471 is fixedly connected to the second elastic arm segment 452 by a screw (not shown). The first bow-shaped elastic arm 46 is connected with the first elastic arm section 451 through the third extending part 461, and the second bow-shaped elastic arm 47 is connected with the second elastic arm section 452 through the fourth extending part 471.
In an exemplary embodiment, the annular spring arm 45, the first and second arcuate spring arms 46, 47, the third extension 461, and the fourth extension 471 have a thickness in a range of 0.2 mm to 0.6 mm. The long steel sheet with the thickness has good vibration damping performance. In an exemplary embodiment, the annular elastic arm 45, the first and second arcuate elastic arms 46 and 47, and the third and fourth extensions 461 and 471 are made of stainless steel 301(SUS301) or X12CrNi 17.
It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein can be combined as a whole to form other embodiments as would be understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710132073.XA CN108572701B (en) | 2017-03-07 | 2017-03-07 | Embedded industrial computer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710132073.XA CN108572701B (en) | 2017-03-07 | 2017-03-07 | Embedded industrial computer |
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| CN108572701A CN108572701A (en) | 2018-09-25 |
| CN108572701B true CN108572701B (en) | 2021-09-17 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2577404Y (en) * | 2002-09-20 | 2003-10-01 | 联想(北京)有限公司 | Two-dimensional shoak-absorbing hard disk rack |
| CN201054253Y (en) * | 2007-06-08 | 2008-04-30 | 联想(北京)有限公司 | Hard disk fixing device |
| CN101901625A (en) * | 2010-03-17 | 2010-12-01 | 昆山力盟机械工业有限公司 | 3.5 inch hard disc shockproof device |
| CN201927349U (en) * | 2010-12-13 | 2011-08-10 | 深圳市锐明视讯技术有限公司 | Hard-disk cartridge |
| CN202677846U (en) * | 2012-07-02 | 2013-01-16 | 深圳市同为数码科技股份有限公司 | Vehicle hard disk damping device |
| CN202677848U (en) * | 2012-07-12 | 2013-01-16 | 深圳市同为数码科技股份有限公司 | Vehicular hard disk damping mechanism |
| US9099163B1 (en) * | 2013-03-14 | 2015-08-04 | Western Digital Technologies, Inc. | Hard disk drive (HDD) mounting system for shock and vibration |
| CN205540487U (en) * | 2016-03-01 | 2016-08-31 | 深圳市集和诚科技开发有限公司 | Antidetonation and heat abstractor suitable for no fan industrial computer hard disk |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004014032A (en) * | 2002-06-07 | 2004-01-15 | Toshiba Corp | Electronic equipment |
| JP2008171460A (en) * | 2007-01-09 | 2008-07-24 | Funai Electric Co Ltd | Recording/reproducing device |
| CN202084299U (en) * | 2011-05-24 | 2011-12-21 | 研华科技(中国)有限公司 | Suspension damping device for hard disk |
| CN104345820A (en) * | 2013-08-01 | 2015-02-11 | 上海同悦信息科技有限公司 | Novel quakeproof chassis |
| CN203567497U (en) * | 2013-10-10 | 2014-04-30 | 重庆三四零三汽车零部件有限公司 | Hoisting-interference-resistant automobile laminated spring |
| CN204845415U (en) * | 2015-06-06 | 2015-12-09 | 闫洪春 | Damping device and tractor |
-
2017
- 2017-03-07 CN CN201710132073.XA patent/CN108572701B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2577404Y (en) * | 2002-09-20 | 2003-10-01 | 联想(北京)有限公司 | Two-dimensional shoak-absorbing hard disk rack |
| CN201054253Y (en) * | 2007-06-08 | 2008-04-30 | 联想(北京)有限公司 | Hard disk fixing device |
| CN101901625A (en) * | 2010-03-17 | 2010-12-01 | 昆山力盟机械工业有限公司 | 3.5 inch hard disc shockproof device |
| CN201927349U (en) * | 2010-12-13 | 2011-08-10 | 深圳市锐明视讯技术有限公司 | Hard-disk cartridge |
| CN202677846U (en) * | 2012-07-02 | 2013-01-16 | 深圳市同为数码科技股份有限公司 | Vehicle hard disk damping device |
| CN202677848U (en) * | 2012-07-12 | 2013-01-16 | 深圳市同为数码科技股份有限公司 | Vehicular hard disk damping mechanism |
| US9099163B1 (en) * | 2013-03-14 | 2015-08-04 | Western Digital Technologies, Inc. | Hard disk drive (HDD) mounting system for shock and vibration |
| CN205540487U (en) * | 2016-03-01 | 2016-08-31 | 深圳市集和诚科技开发有限公司 | Antidetonation and heat abstractor suitable for no fan industrial computer hard disk |
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| CN108572701A (en) | 2018-09-25 |
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